APPENDIX ACONVERSION TABLESTM 55-2320-272-14-11. Common Metric Abbreviationsm = meterkg = kilogramdm = decimeterkm = kilometercm = centimetert = metric tonmm = millimeter2. Linear Measure1 mi = 1,609.35 m1 yd = 0.9144 m1 ft = 0.3048 m1 in = 0.0254 m1 m = 10 dm = 100 cm = 1000 mm1 km = 0.62137 mi1 m = 1.0936 yd1 m = 3.2808 ft1 m = 39.3700 in3. Surface Measure1 sq yd = 0.8361 sq m1 sq m = l.196 sq yd1 sq ft = 0.0929 sq m1 sq m = 10.764 sq ft1 sq in = 0.00065 sq m1 sq m = 1,550 sq in4. Cubic Measure1 cu yd = 0.76455 cu m1 cu m = 1.31 cu yd1 cu ft = 0.02831 cu m1 cu m = 35.30 cu ft1 cu in = 0.000016 cu m1 cu m = 61,023 cu in5 . W e i g ht1 STON = 907.185 kg1 kg = 2.2046 lb1 LTON = 1016 kg1 t = 1,000 kg1 lb = 0.45359 kg1 t = 2,204.62 lb1 STON = 2,000 lb1 LTON = 2,240 lb6. The following simplified conversion factors are accurate to within 2 percent for quick computations:a. Inches to centimeters - Multiply inches by 10 and divide by 4.b. Yards to meters - Multiply yards by 9 and divide by 10.c. Miles to kilometers - Multiply miles by 8 and divide by 5.d. Pounds to kilograms - Multiply pounds by 5 and divide by 11.7. The following conversions are provided for guidance when procuring lumber, wire rope, or wire in areasthat use the metric system. Lumber sizes are rounded off to the nearest 1/2 cm.a. Lumber2-in x 4-in x desired length = 5-cm x 10-cm x desired length1-in x 6-in x desired length = 2.5-cm x 15-cm x desired length6-in x 8-in x desired length = 15-cm x 20-cm x desired length1-in x 12-in x desired length = 2.5-cm x 30-cm x desired length (length normally expressed in ft or m)b. Wire rope. Round off to next higher whole mm of available wire rope sizes.318-in dia = 9.5-mm dia1/2-in dia = 12.7-mm dia518-in dia = 15.8-mm dia314-in dia = 19.0-mm dia718-in dia = 22.2-mm dia1-in dia = 25.4-mm dia1-1/4-in dia = 31.7-mm dia1-1/2-in dia = 38.1-mm diac. Wire. No. 8 gauge annealed (11/64-in dia) = 4.37-mm dia. Round off to the next higher whole mm ofavailable wire rope sizes.A-1

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